package async

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The default expect test config in code which has open Async.

%expect has type unit rather than unit Deferred.t. This lets one write:

[%expect {| |};

rather than:

let%bind () = [%expect {| |}] in

It also means that let%expect cannot terminate with %expect, and must instead terminate with return ().

include Expect_test_config_types.S
  with type 'a IO.t = 'a Async_kernel.Deferred.t

module IO : sig ... end

val run : (unit -> unit IO.t) -> unit

Run an IO operation until completion

val sanitize : string -> string

sanitize can be used to map all output strings, e.g. for cleansing.

val upon_unreleasable_issue : 
  Expect_test_config_types.Upon_unreleasable_issue.t

upon_unreleasable_issue specifies how to deal with output that should not be released even if it is accepted (e.g. backtraces). The default is `CR.